skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effect of electrode material on characteristics of non-volatile resistive memory consisting of Ag{sub 2}S nanoparticles

Abstract

In this study, Ag{sub 2}S nanoparticles are synthesized and used as the active material for two-terminal resistance switching memory devices. Sintered Ag{sub 2}S films are successfully crystallized on plastic substrates with synthesized Ag{sub 2}S nanoparticles, after a relatively low-temperature sintering process (200 °C). After the sintering process, the crystallite size is increased from 6.8 nm to 80.3 nm. The high ratio of surface atoms to inner atoms of nanoparticles reduces the melting point temperature, deciding the sintering process temperature. In order to investigate the resistance switching characteristics, metal/Ag{sub 2}S/metal structures are fabricated and tested. The effect of the electrode material on the non-volatile resistive memory characteristics is studied. The bottom electrochemically inert materials, such as Au and Pt, were critical for maintaining stable memory characteristics. By using Au and Pt inert bottom electrodes, we are able to significantly improve the memory endurance and retention to more than 10{sup 3} cycles and 10{sup 4} sec, respectively.

Authors:
 [1]
  1. School of Electronics Engineering, Kyungpook National University, Daegu 702-701 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22611470
Resource Type:
Journal Article
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 7; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2158-3226
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ATOMS; ELECTROCHEMISTRY; ELECTRODES; FILMS; MELTING; MELTING POINTS; MEMORY DEVICES; METALS; NANOPARTICLES; SILVER SULFIDES; SINTERING; SUBSTRATES; SURFACES

Citation Formats

Jang, Jaewon, E-mail: j1jang@knu.ac.kr. Effect of electrode material on characteristics of non-volatile resistive memory consisting of Ag{sub 2}S nanoparticles. United States: N. p., 2016. Web. doi:10.1063/1.4958881.
Jang, Jaewon, E-mail: j1jang@knu.ac.kr. Effect of electrode material on characteristics of non-volatile resistive memory consisting of Ag{sub 2}S nanoparticles. United States. doi:10.1063/1.4958881.
Jang, Jaewon, E-mail: j1jang@knu.ac.kr. Fri . "Effect of electrode material on characteristics of non-volatile resistive memory consisting of Ag{sub 2}S nanoparticles". United States. doi:10.1063/1.4958881.
@article{osti_22611470,
title = {Effect of electrode material on characteristics of non-volatile resistive memory consisting of Ag{sub 2}S nanoparticles},
author = {Jang, Jaewon, E-mail: j1jang@knu.ac.kr},
abstractNote = {In this study, Ag{sub 2}S nanoparticles are synthesized and used as the active material for two-terminal resistance switching memory devices. Sintered Ag{sub 2}S films are successfully crystallized on plastic substrates with synthesized Ag{sub 2}S nanoparticles, after a relatively low-temperature sintering process (200 °C). After the sintering process, the crystallite size is increased from 6.8 nm to 80.3 nm. The high ratio of surface atoms to inner atoms of nanoparticles reduces the melting point temperature, deciding the sintering process temperature. In order to investigate the resistance switching characteristics, metal/Ag{sub 2}S/metal structures are fabricated and tested. The effect of the electrode material on the non-volatile resistive memory characteristics is studied. The bottom electrochemically inert materials, such as Au and Pt, were critical for maintaining stable memory characteristics. By using Au and Pt inert bottom electrodes, we are able to significantly improve the memory endurance and retention to more than 10{sup 3} cycles and 10{sup 4} sec, respectively.},
doi = {10.1063/1.4958881},
journal = {AIP Advances},
issn = {2158-3226},
number = 7,
volume = 6,
place = {United States},
year = {2016},
month = {7}
}